diff --git a/include/linux/ata.h b/include/linux/ata.h
index d2873b7..3eb80c3 100644
--- a/include/linux/ata.h
+++ b/include/linux/ata.h
@@ -141,6 +141,8 @@
 	ATA_CMD_PACKET		= 0xA0,
 	ATA_CMD_VERIFY		= 0x40,
 	ATA_CMD_VERIFY_EXT	= 0x42,
+ 	ATA_CMD_STANDBYNOW1	= 0xE0,
+ 	ATA_CMD_IDLEIMMEDIATE	= 0xE1,
 	ATA_CMD_INIT_DEV_PARAMS	= 0x91,
 
 	/* SETFEATURES stuff */